miller



0. H. MILLER. VALVE FOR WATER cmsm.

Patented Nov. 26,1867.

' mine? sses.

CHARLES H. MILLER, OF BUFFALO, NEW YORK, ASSIGNOR TO CHARLES RARRISoN, on NEW YORK CITY. i

Letters Patent No. 71,510, dated November 26, 1867.

IMPROVED VALVE FOR WATER-ULOSETS.

TO ALL WHOM IT MAY OONOERN:'

Be it known that I, CHARLEsH. MILLER, of the cityof Bufi'alo, county of Erie, and State of New York, have inventedan Improved Self-Acting Valve; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part ofthis specification, in which Figure I is a longitudinal section of said: valve.

Figure II is a longitudinal section of thevalve-seat and cylinder, with adjustable piston, by which the movements of the valve are controlled.

Figure III is a cross-section of same on line 1-2 of Fig II; and

Figure IV is also a cross-section on line 3-4 of Fig. II.

The invention relates to that class-of valves usually applied to water-closet basins to admit a definite quantity of. water therein after each use, and consists First, in governing the action of the valve by an adjustable piston attached to the stem thereof, and working loosely in a cylinder, which, filling with water. duringthe opening of the valve, will permit the closing thereof-only after'thedisplacement-therefromlof the water by the piston; the adjustment of the piston on the stem regulating the quantity of water which will enter the cylinder, a'nd consequently the time which the valve --will remain open for the flow of the' Water-to the basin. 7

Second, in making the piston-cylinder, which also-forms the valve-seat, separate from the valve-casing, so

'that it and allthe'working parts may be removed for repairswithout disturbing the connection of the casing to the basin and supply-pipe.

Like letters-refer to like parts in each of the figures.

A representsthe valve-casing, having a projecting shank, A, by which it may be fastened t6 the basin, a water-supply orifice,A?, at the bottom, and a discharge-orifice and nozzle, A, at the side also, a cylindrical chamber, A, at'the top for the reception of the piston-cylinder. p

Brepresents the piston-cylinder, the same being a plain cylindrical shell, open at both ends, When in place, its upper half fits snugly the bore of the chamber A, and its bottom end fits by a grooved joint to a partition-seat, B, dividing, in connection with the valve, the supply from the discharge-passage. An enlarge ment of the chamber A forms an annular space, Airs-round the lower half of the cylinder, with which the bore of the cylinder communicates by the row ofholes, near the lower end thereof. This cylinder may bemade a part of the casing, but I preferto make it separate and removable p 4 0 represents the valve, having its seat formed in the lower end of the cylinder B, its stem, c,e xtending hp longitudinally through the cylinder, and projecting through the screw'cap c, by which the chamber is covered When the valve is opened by a downward push on the valve=stem, a communication between the supply and" dischargeorifices is opened for the flow of the, water by way of the holes Ii in the lower end of the cylinder.

D represents the piston applied to the valve-stem, and fitting loosely in the bore of the cylinder. The valve stem having a screw thread cut thereon working in a female thread but in the piston, so that the piston being prevented from turning by a feather projecting from its peripheryinto a longitudinal groove in the side of the cylinder, the turning of the valve-stem will raise or lower the piston thereon." The' valve-stem is provided with a but-ton or thumb-wheel, D, at its'npper end, byfwhich it may beeasily turned to adjust the piston;

A spiral spring, E, interposed between the valve and a shoulder, E,"around the supply-orifice, assists the water-head or pressure in seating the valve.-' A packing-washer, F, is interposed-between the screwcapnnd the top of the cylinder to prevent leakage, said washer also fitting closely to the valve-stem. The supply and discharge-nozzles are furnished with coupling-nuts, G and H, for the attachment of their-respective pipes:

Operation.

The valve is opened by a'downward push on the valvestem, given by means of a levenpullrof common com struc'tion, or'by connectionwith the seat-board in a. common manner. The distance which the valve will open is regulated by the position of the piston on the valve-stem, the striking of the piston on an inner seat, I, at the lower end of the cylinder arresting any further downwaad movement. Turning the valve-stem in such direction as to raise the piston thereon and increase the distance between the valve and piston, will evidently-increase the distance which the valve may open, while a reverse movement of the piston on the stem will decrease the distance which the valve mayopen. When the valve is open, the piston will cover the openings 5, and prevent any considerable flow of water, but the cylinder above the piston will'fill by leakage past the same, so thatwhen the valve is free to rise by the release of the lever-pull or seat-board, its movement will be retarded by the water above the piston, until the same shall be displaced by the'piston, escaping from the cylinder by leakage as in filling. The higher the position of the piston on the valve-stem, the. greater will be the movement of the valve, and the greater the amount of water entering the cylinder for subsequent displacement, and in-consequence the longer will be the time occupied in such displacement, and during which the flew of water through the valve will continue. Small holes, J, are made through the side of the cylinder into the groove,-in which thepiston works to facilitate the filling of the cylinder. It is evident that however long the valve may remain open, the

pistoucovering the holes 6 will prevent any considerable flow of i water, thus specially adapting the valve for operation with .a seat-board. Further, by raising the piston on the valve-stem until it strikes the cap, it may be prevented from closing at all, thus causingit to act as a wastewalve, which will oftentimes prove a great convenience. I v

. All these adjustments of the piston and valve are efi'ected with the utmoshreadiness by simply turning the valve-stem, as before described. The cylinder, piston, and valve may at any time be removed from the casing by simply unscrewing the cap c ,.and without disturbing the;connection-of the casing with the basin or supplypipe. This feature will prove of great convenience and utility when the valve needs cleaning or grinding.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is.- 1. The adjustable piston D, in combination with the valve C and cylinder B, substantially as described. 2. The removable cylinder B, arranged in the body of the'faucet, and forming a'water-chamber above the piston, for the purpose and substantially as described.

CHARLES H.1MILLERV Witnesses:

Enw'n 0. HAWKS, W. H. Fomsnsn. 

